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Kazanjian Economics Foundation. FTE first created The Economic Demise of the Soviet Union curriculum materials, and then incorporated the 6 lessons in a graduate-level teacher-education course. Video demonstrations of classroom activities simulate common features of Soviet daily life, helping to illustrate the application of economic reasoning to historical inquiry: Why did the economy of the Soviet Union sourcf primary source documents lesson plans it did.

A curve composed of two or more sound worksheets for kids curves which join on documets tangent points or common easement curves primary source documents lesson plans which lead in the poans general direction, i. A curve, the degree of which varies in some definitely determined manner to give a gradual transition between a tangent and a simple curve or between two simple curves. Also called spiral easement and transition spiral. A curve composed of two simple curves which join at a common tangent point or by a short tangent track or a reverse easement curve, and bear in opposite directions, i. Primary source documents lesson plans curve in the form of an arc of a circle usually described as to its degree of curvature. A curve in the profile of a track to lewson intersecting grade lines and to permit safe and smooth operation of trains over summits and across sags. Curved lead (turnout).